CVE-2023-52557

highpriority · track · 0EPSS 0.006 · 46 %ileDEEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.56% (46th) EPSS

CVSS 7.5 · high

Is it mine?

4 products

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · cert_bund

EPSS · scored 2026-10-27

In OpenBSD 7.3 before errata 016, npppd(8) could crash by a l2tp message which has an AVP (Attribute-Value Pair) with wrong length.

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–7.5

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · ENISA EU

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondaryexploitability 3.9 · impact 3.6

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

The CWE weakness classes this flaw belongs to.

Products and version ranges known to be affected.

Vendor and ecosystem advisories describing this.

WID-SEC-W-2024-0531OpenBSD: Mehrere Schwachstellen ermöglichen Denial of ServiceDeutsch2024-03-03csaf · cert_bundDE
Ein lokaler Angreifer kann mehrere Schwachstellen in OpenBSD ausnutzen, um einen Denial-of-Service-Zustand zu erzeugen.

Other names and identifiers for this entity.

Which sources assert this record, and when.

published 2024-03-01modified 2026-06-17

External citations — patches, advisories, analysis.

scry

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